TY  - BOOK
AU  - Indian Standards Institution
TI  - Requirements for Filtration Equipment: Part 1 Filtration Media Sand and Gravel (IS : 8419 (Part 1) - 1977)
U1  - IS : 8419 (Part 1) - 1977 
PY  - 1977///
CY  - New Delhi
PB  - Indian Standards Institution
KW  - Indian Standard - IT
N1  - IS : 8419 (Part 1) - 1977
ER  -